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James467
PostPosted: Mon Jul 09, 2018 12:59 pm 
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I have a spare bonnet with louvres, but in mimosa yellow.
No one will notice the colour difference, they'll be too busy thinking about how cool you are! 8) :lol:
And how COOL your engine bay is.... in both senses of the word. :wink:
Taxi for Clayton someone!! :lol: :lol: :lol:
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Mahesh
PostPosted: Mon Jul 09, 2018 1:45 pm 
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All good :D

But the heat from the electric fan is excessive, and in need of some sort of
diversion or blocking off.

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dollyman
PostPosted: Mon Jul 09, 2018 2:10 pm 
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Will this be enough for a Dolly?


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holden-fb-van-bonnet-louvres.jpg
holden-fb-van-bonnet-louvres.jpg [ 60.03 KiB | Viewed 385 times ]

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Carledo
PostPosted: Mon Jul 09, 2018 6:59 pm 
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Will this be enough for a Dolly?
Serious overkill IMO!

Find a pic of a stock MkI/II GT6 bonnet, the top louvres are just about perfect, in both size and relative position! Ignore the side ones on the MkII, pretty as they are, the Dollies solid flitches would make them purely ornamental and you look a bit silly!

Something like this Stag is just about PERFICK!

Image

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Mad Mart
PostPosted: Mon Jul 09, 2018 7:35 pm 
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This is where I positioned the ones on my ex track Sprint. I wanted to go further back but that's as far as I could go without cutting the bracing.


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Mahesh
PostPosted: Mon Jul 09, 2018 7:43 pm 
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The ones on the bonnet I bought are just a bit lower, but must be better than nowt :?:

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new to this
PostPosted: Mon Jul 09, 2018 7:55 pm 
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Bit confused here :D Dolomites have louvers already at the back of the bonnet,or are they just for show ? Could you drill a couple of holes in the top of the bulk head,for the heat to come out the louvers in the bonnet

Dave
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Mahesh
PostPosted: Mon Jul 09, 2018 8:16 pm 
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Bit confused here :D Dolomites have louvers already at the back of the bonnet,or are they just for show ? Could you drill a couple of holes in the top of the bulk head,for the heat to come out the louvers in the bonnet

Dave
I have ascertained they are there to let the rain in and rust the bulkhead, and also collect leaves and insects and then deposit them at the bottom in a hard to clean out area, thus allowing the car to decompose them at leisure.

May also be for the eyeball vents.

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AlanH
PostPosted: Mon Jul 09, 2018 8:33 pm 
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Hope I'm not too far off subject but I have thought of putting sound proofing on my bonnet but will this increase the temperature of the engine bay?
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Carledo
PostPosted: Mon Jul 09, 2018 8:38 pm 
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Bit confused here :D Dolomites have louvers already at the back of the bonnet,or are they just for show ? Could you drill a couple of holes in the top of the bulk head,for the heat to come out the louvers in the bonnet

Dave
Besides accelerating the rust issues as per Mahesh's post, the vents in the Dolomite bonnet supply fresh air to all parts of the heater assembly. It's not a good idea to make an air path between the engine bay and the heater as it will permit fumes/smoke into the cabin. That's why the false bulkhead is there!

Steve

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2 door '73 Toledo with Vauxhall Carlton 2.0 8v engine OWF 797M (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine EGP 247T (The Dolomega)
'91 Cavalier 2ltr 8v auto
'95 Cavalier 2ltr 16v auto
Spectrum Auto Services, Servicing, Repairs, MOT prep. Apprentice served Triumph Specialist for 45 years and home of Maverick Triumph.PM for more info or quotes.
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Carledo
PostPosted: Mon Jul 09, 2018 8:41 pm 
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Hope I'm not too far off subject but I have thought of putting sound proofing on my bonnet but will this increase the temperature of the engine bay?
It might make a slight difference, but I doubt it would be noticeable. Wretched things get too hot anyway, a bit hotter than too hot is still much too hot!

Steve

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2 door '73 Toledo with Vauxhall Carlton 2.0 8v engine OWF 797M (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine EGP 247T (The Dolomega)
'91 Cavalier 2ltr 8v auto
'95 Cavalier 2ltr 16v auto
Spectrum Auto Services, Servicing, Repairs, MOT prep. Apprentice served Triumph Specialist for 45 years and home of Maverick Triumph.PM for more info or quotes.
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new to this
PostPosted: Mon Jul 09, 2018 8:49 pm 
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Bit confused here :D Dolomites have louvers already at the back of the bonnet,or are they just for show ? Could you drill a couple of holes in the top of the bulk head,for the heat to come out the louvers in the bonnet

Dave
Besides accelerating the rust issues as per Mahesh's post, the vents in the Dolomite bonnet supply fresh air to all parts of the heater assembly. It's not a good idea to make an air path between the engine bay and the heater as it will permit fumes/smoke into the cabin. That's why the false bulkhead is there!

Steve
Steve

Looks like you've just upset my idea about increasing air flow in the engine bay :D :D

Dave


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dollyman
PostPosted: Mon Jul 09, 2018 9:18 pm 
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This is where I positioned the ones on my ex track Sprint. I wanted to go further back but that's as far as I could go without cutting the bracing.
Now those look really good :D God know's what was under the bonnet of my pic to need that amount of louvre's :lol:

Tony.

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tony g
PostPosted: Tue Jul 10, 2018 7:34 am 
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They are probably in the best position for air flow imo. What are the vents from Mart?

Tony
Quote:
This is where I positioned the ones on my ex track Sprint. I wanted to go further back but that's as far as I could go without cutting the bracing.


Image

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Mad Mart
PostPosted: Tue Jul 10, 2018 7:51 am 
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I actually found the link to the vents:-

http://www.body-kit.co.uk/product.php/1 ... 1109df1216

They were only about £16 each when I bought mine. I think I got mine off Ebay though iirc.

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